code: def load_phonemes_set():
      S = FLAGS.special_phonemes + FLAGS._normal_phonemes
      return S
  
file_path: underthesea/underthesea/pipeline/say/viettts_/nat/data_loader.py
imports: import random
  from pathlib import Path
  import numpy
  from scipy.io import wavfile
  from .config import FLAGS, AcousticInput, DurationInput
label_desc: Use image node_id 1 for calling a global function with example usage: load_phonemes_set() and returns: S